Force Factor Ripped off 75 dollars Internet

I ordered a "free trial"of force factor online.  I needed to enter my credit card information for shipping and handling.  I received a email confirming my order with the charge for shipping and handling. 

I few weeks later I found a charge for 75 dollars on the same card.  When I called to tell them I did not order anything they said I signed up for a program when I agreed to the free trial.  Apparently, there was a small box with a 8pt font next to the credit card entry explaining you have to call and cancel or be charged. 

My problem...

#1 the font is very difficult to read(I have bad vision)
#2 they don't give you any of this information in the free trial confirmation email
#3 they don't ever email you to let you know you are going to be charged additional fees

This company is clearly getting business in a very unethical way because I was charged for something I did not want.  I was told if I return the bottle I was charged for I will be refunded but I have read online that they will not return your money so I might as well just keep the bottle I paid for now.